In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Dieters who sleep more take off more fat that those who sleep less.
159
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
You forget 90% of your dreams.
256
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
People who sleep late have more mental stamina and can outperform early risers.
33
Those who get out of bed by 7am are more likely to be thinner and happier.
20
If you hold farts in during the day, they'll just come out when you sleep.
16